A) reaction force B) mechanical Wave C) impulse D) thermal energy
A) artificial lights B) the high energy of the Sun C) a vacuum D) the energy of distant stars
A) ultraviolet light B) visible light C) radio waves D) microwaves
A) True B) False
A) vibrational wave B) longitidunal wave C) transverse Wave D) thermal wave
A) interference wave B) node C) longitudinal wave D) transverse wave
A) water waves B) sound waves C) light waves D) seismic waves
A) sound waves B) water waves
A) violet B) blue C) green D) red E) yellow
A) blue B) yellow C) red D) violet E) green
A) infrared light B) radio waves C) gamma rays D) ultraviolet light
A) ultraviolet light B) x-rays C) gamma rays D) radio waves
A) when the queen greets her subjects while cleaning B) mechanical waves C) electromagnetic waves
A) white light B) a gross brown colour C) black light D) a path to lucky charms
A) x-rays B) gamma rays C) ultraviolet light D) radio waves
A) Energy B) Captured in our Ears C) Waves D) All of these are correct E) Vibrations
A) The waves are moving like the ripples in a pond from a rock B) There is a rainbow present in the sky. C) A moving object is emitting sound continuously. D) The waves are really distorted in the front where the sound is and not in the back after the object moves away
A) Liquids B) Space C) Gases D) Solids
A) Sound that DOES NOT bounce back to you B) A figment of your imagination C) Sound bouncing back to you off a solid object D) Sound that bounces in all directions
A) Frequency B) Velocity C) Hertz D) Intensity E) Amplitude
A) The unit of measure used to measure frequency B) The unit of measure used to measure the loudness C) The unit of measure that is used to measure wavelength D) The unit of measure to measure tone quality
A) Amplitude B) Frequency C) It does not have a relation D) Decibels E) Speed
A) 50 dB B) 100 dB C) 200 dB D) 20 dB E) 70 dB
A) Neither B) True C) The only place in space that you can hear is the moon D) False E) You can always hear no matter where you are
A) 100-100,000Hz B) 50-50,000Hz C) 20-20,000Hz D) 0-100Hz E) A mouse squeak to a lion's roar
A) a lower pitch B) a louder sound C) a softer sound D) a higher pitch
A) at right angles with the source B) in a straight line C) parallel to the source D) all directions
A) determined between two consecutive compressions or rarefractions B) determined between two consecutive crests or troughs C) determined by how many particles move side to side D) determined by how loud it is
A) infrasonic B) hydrasonic C) ultrasonic D) sonic the hedgehog
A) infrasonic B) sonic the hedgehog C) hydrasonic D) ultrasonic
A) ultrasound machine B) all of the above C) bats D) elephants
A) whales B) bats C) ultrasound machine D) all of these
A) increases, decreases B) decreases, increases C) stops, restarts D) starts, stops
A) Echo Location B) Echo Reverberation C) No echos at all D) Echo Detection
A) frequency B) wavelength C) amplitude D) hearing sensitivity
A) 3 m/s B) 40 km/h C) 10 km/h D) 340 m/s
A) intense road traffic B) rock music concert C) jet motor D) calm classroom
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